YDCHARGE CCS1 to NACS (SAE J3400) AC/DC Charging Adapter
High-Current Dual AC/DC Passive Interoperability Solution for NACS EV Integration
UL 2252 Certification Coverage
IP65 / IP67 Sealed Protection
SAE J3400 Interface Validated
The YDCHARGE CCS1 to NACS (SAE J3400) AC/DC Charging Adapter is a high-current passive charging interface adapter designed to connect CCS Combo 1 charging equipment with NACS-equipped electric vehicles. Supporting both AC charging and DC fast charging modes, it provides up to 80 A AC charging capability and 400 A DC charging capability with a maximum DC voltage rating of 1,000 V.
Silver-plated copper busbar structure engineered for high-current AC & DC power transfer.
Dual-interface temperature monitoring, mechanical interlock protection, and NACS locking support.
IP65/IP67 rated weatherproofing built for heavy-duty outdoor commercial infrastructure.
YDCHARGE CCS1 to NACS AC/DC Charging Adapter
Professional Dual AC/DC Passive Interface Solution for SAE J3400 Vehicle Integration
UL 2252 Certified
IP65 / IP67 Weatherproof
SAE J3400 Validated
UL 94 V-0 Housing
Cross-Standard Charging Overview & Flow
The YDCHARGE CCS1 to NACS (SAE J3400) AC/DC Charging Adapter is developed for cross-standard EV charging applications where CCS Combo 1 charging equipment needs to connect with electric vehicles equipped with NACS charging interfaces. Supporting up to 80 A AC charging and 400 A DC charging with a maximum 1,000 V DC rating, it is suitable for EV charging accessory suppliers, fleet operators, charging equipment manufacturers, vehicle compatibility projects, and OEM/ODM programs requiring a certified interface solution.
1. Interface Architecture & Dual-Mode Power Support
Passive Power-Path Architecture
The adapter uses a passive power-path design and does not function as an independent charger or power converter. It maintains direct electrical and communication pass-through while leaving system control to the EV and EVSE:
- No AC to DC power conversion
- No DC voltage level transformation
- No internal power boost or independent charging logic
- No protocol translation required
Dual-Mode AC & DC Charging Support
Unlike DC-only adapters, this product supports both AC charging and high-power DC fast charging through a unified platform:
Up to 250 V AC max voltage / 80 A AC max current.
Up to 1,000 V DC max voltage / 400 A DC max current.
2. Hardware Engineering & Safety Systems
High-Current Conductive Busbars
Engineered for continuous high-current operation, the conductive assembly utilizes high-conductivity silver-plated copper busbars. This optimized contact design minimizes internal contact resistance, reduces localized thermal generation, and provides reinforced insulation around high-voltage components.
Intelligent Thermal Monitoring
Integrated thermal sensors continuously monitor temperature at both the CCS1 and NACS connection interfaces. If abnormal thermal conditions or excessive heating are detected, the system interrupts the charging control signal to halt power transfer before hardware damage occurs.
Mechanical Interlock Protection
Features an integrated mechanical interlock mechanism designed to prevent live disconnection under load. When the release latch is engaged, the control signal is immediately cut, signalling the charger to shut down current flow prior to physical separation, eliminating arc flash hazards.
NACS Mechanical Latching
The vehicle-side NACS connector incorporates a mechanical locking structure that securely fastens to the vehicle inlet during active charging. This connection stability protects against accidental disconnects and supports long-term commercial handling.
Environmental Protection & Signal Integrity
Provides IP65 protection during active charging operations and IP67 sealed protection when the protective cover is closed.
Maintains transparent communication continuity between CCS1 equipment and the NACS vehicle interface without data processing or delay.
Constructed with high-grade, flame-retardant engineering PC materials ensuring safety under demanding operational and environmental conditions.
3. Standards & Regulatory Certifications
UL 2252 Certified EV Adapter
Fully certified under UL 2252 (Adapters for Use with Electric Vehicle Couplers), covering full safety and electrical performance evaluation for both AC charging and high-power DC fast charging configurations up to 400 A / 1,000 V DC.
SAE J3400 Interface Compliance
Designed and validated according to applicable SAE J3400 NACS vehicle interface requirements and CCS Combo 1 infrastructure specifications, ensuring interoperability across compliant North American EV networks.
B2B, OEM & ODM Project Cooperation
YDCHARGE offers complete OEM/ODM support for CCS1 to NACS adapter deployments. Our services include private labeling, custom housing colors, localized packaging, customized documentation, and specialized engineering testing for fleet and accessory distributors.
*Note: All customized configurations retain certification alignment within the official UL 2252 listing file.
Technical Specifications
| General & Application Overview | |
|---|---|
| Product Type | CCS Combo 1 to NACS AC/DC Charging Adapter |
| Charging Direction | CCS1 Charging Equipment → Adapter → NACS Vehicle |
| Vehicle Interface | SAE J3400 / NACS |
| Charging Equipment Interface | CCS Combo 1 |
| Charging Mode | AC Charging + DC Fast Charging |
| Adapter Architecture | Passive charging interface adapter |
| Power Conversion | None |
| Voltage Conversion | None |
| Protocol Conversion | None |
| OEM/ODM Support | Supported |
| Electrical & Thermal Performance | |
| Maximum AC Rating | 250 V AC / 80 A AC |
| Maximum DC Rating | 1,000 V DC / 400 A DC |
| Internal Conductive Structure | Silver-plated copper busbar current path |
| Temperature Monitoring | Dual interface temperature monitoring |
| Thermal Protection | Charging control signal interruption |
| Dielectric Withstand | >2,000 V AC for 1 minute |
| Hardware, Mechanical & Safety Compliance | |
| Mechanical Interlock | Supported |
| NACS Locking | Supported |
| Protection Rating | IP65 during charging connection; IP67 with protective cap closed |
| Insertion Force | ≤100 N |
| Mechanical Life | >10,000 no-load mating cycles |
| Operating Temperature | −30°C to +50°C |
| Housing Material | UL 94 V-0 flame-retardant engineering plastic |
| Certification | UL 2252 |
| Interface Standard | SAE J3400 related requirements |
Application Scenarios
EV Charging Accessory Programs
The adapter is suitable for EV accessory brands developing certified CCS1 to NACS charging interface products. Applications include:
- Private label charging accessories
- EV charging equipment portfolios
- OEM accessory programs
- Regional distribution projects
Fleet Charging Applications
Fleet operators using NACS-equipped vehicles can evaluate CCS1 charging infrastructure compatibility through this adapter where permitted by vehicle manufacturers and charging-network operators.
Charging Infrastructure Integration
Charging equipment suppliers and system integrators can use the adapter for cross-standard charging compatibility projects involving CCS Combo 1 charging equipment and NACS vehicles.
EV Testing and Validation
The adapter can support engineering validation, interoperability testing, and vehicle charging evaluation projects in OEM R&D laboratories.
OEM/ODM Custom Projects
YDCHARGE supports complete customization programs for professional customers, including:
- Branding & logo laser engraving
- Customized product labeling & rating plates
- Localized packaging & technical documentation
- Sample evaluation & volume production
CCS1 to NACS AC/DC Charging Adapter FAQs
Frequently Asked Questions for B2B, OEM/ODM & Infrastructure Integration
A. Product Function & Charging Modes
What is the CCS1 to NACS adapter used for?
Does this adapter support both AC and DC charging?
Yes. The adapter platform supports dual charging modes:
- AC Charging: Up to 250 V AC and 80 A AC.
- DC Fast Charging: Up to 1,000 V DC and 400 A DC.